InStyle.com: 10 Best Hair Tips From Around the World

Mexico: Gelatin Hair Mask

South of the border, they fight frizz with a blend of 1 tbsp. unflavored gelatin, 1 cup water, and 1 tsp. cider vinegar. Massage the gel-like mixture through shampooed hair, leave it in for 5 minutes, then rinse. "It's a practice passed down for generations," says Ifergan.

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Some Colombian grandmothers pass on their recipe for chicken soup, but stylist Lutz Karpf learned this instead: Combine two egg whites with half of a mashed-up avocado; leave it in hair for 15 minutes, then wash and condition. It's a fast and inexpensive natural remedy that leaves hair super-smooth.

Forget caipirinhas. Girls from Ipanema get a buzz from this shine-enhancing mixture. "Once a week, apply a cocoa butter treatment mask, let it sit for a half hour, then rinse it out with coconut water," says pro Marco Antonio De Biaggi of São Paulo. "The combination leaves hair incredibly soft and moisturized--it's a trick of many Brazilian women."

It's all about length, says hair stylist Leonardo Rocco, who was born northwest of Buenos Aires. "Women in Argentina associate long hair with sensuality and glamour." To help keep long strands in shape, he recommends applying aloe vera directly to your scalp or adding it to your usual shampoo.

You may want to learn to love sardines. "They are one of the best sources of omega-3 fatty acids," says Guyanese hairstylist Angie Hookumchand. "Eating them will make your hair grow faster and enhance its radiance." Singer Leona Lewis, who is of Guyanese descent, seems to follow the tip with her shiny, mile-long tresses.

Instead of using a blow-dryer, Mexican-born stylist Oliver Ifergan suggests reaching for a terrycloth towel. "Many Mexican women will wrap a towel very tightly around their hair after showering and wear it until hair is dry. It's a simple way to make strands smooth and straight," he says.

South of the border, they fight frizz with a blend of 1 tbsp. unflavored gelatin, 1 cup water, and 1 tsp. cider vinegar. Massage the gel-like mixture through shampooed hair, leave it in for 5 minutes, then rinse. "It's a practice passed down for generations," says Ifergan.

In the dog days of summer, when your blow-dryer suddenly feels like a blowtorch, you'll thank Jamaican hair expert Denine Smith for this heat-free drying trick. After shampooing and conditioning, set hair in Velcro rollers to air-dry. "You end up with lush, bouncy, free-flowing curls," he says.

The same nutrients that allow the prickly pear cactus to thrive in the scorching Jamaican sun can help rejuvenate heat-damaged hair. "We peel the cactus and wash our hair with the oil to make it feel lush and hydrated," says Denine Smith.

"The island is humid and windy, and women here spend a lot of time at the beach," says Guaynabo stylist Elizabeth Rosado. "Instead of fighting their natural texture, we help them embrace it with soft layers." Opt for long, face-flattering layers similar to Jennifer Lopez's, who is of Puerto Rican descent.

"The dry, harsh weather in Canada makes for thirsty, unruly hair," says Toronto stylist Leland Olson. To combat this, she suggests trying a so-called arctic rinse: At the end of your shower turn off the hot water. "I know it sounds unpleasant, but this instantly seals each cuticle, closing up the shaft so it reflects natural light more easily and provides optimal shine and radiance."